/*
 * Copyright (c) 2025 Huawei Device Co., Ltd.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

type Translation = { [key: string]: { [key: string]: string } };
export class LanguageManager {
  private static instance: LanguageManager | null = null;
  language: string = "zh";
  translations: Translation = {};

  private constructor() {}

  public static getInstance(): LanguageManager {
    if (!LanguageManager.instance) {
      LanguageManager.instance = new LanguageManager();
    }
    return LanguageManager.instance;
  }

  public setLanguage(lang: string) {
    this.language = lang;
  }
  public setTranslations(trans: Translation) {
    this.translations = trans;
  }

  get(key: string) {
    return this.translations[this.language][key]
      ? this.translations[this.language][key] || key
      : key;
  }
}
